Stacked tray collecting and releasing equipment, tray releasing method and tray collecting method

Abstract

The invention relates to the technical field of take-up and pay-off machines, in particular to a stacked tray take-up and pay-off device, a tray pay-off method and a tray take-up method. Comprising a machine table, a carrier containing position, a first conveying mechanism, a material supporting mechanism, a lifting driving mechanism, an unlocking mechanism, a transferring mechanical arm movably arranged between the first conveying mechanism and the carrier containing position, a width-adjustable conveying mechanism connected with the output end of the first conveying mechanism, and a lifting rotating mechanism arranged in the middle of the width-adjustable conveying mechanism. The second conveying mechanism is movably arranged on the output side of the width-adjustable conveying mechanism, the moving driving mechanism drives the second conveying mechanism to move, the storage device and the width-adjustable conveying mechanism are arranged side by side, and the taking and placing mechanical arm is movably arranged between the storage device and the width-adjustable conveying mechanism. A pile of trays in a carrier can be put down and then conveyed outwards or a pile of trays input from the outside can be loaded into the carrier, and the automatic conveying device can be in butt joint with different devices to achieve automatic conveying.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stacker-retriever, in particular to a stacked tray loading and unloading device, a tray loading method and a tray unloading method. BACKGROUND

[0002] In the prior art, a Chinese patent document with application number 202020373180.9 discloses an automatic feeding mechanism for loading stacked tray circuit boards and blanks, which includes a tray conveying line, an NG conveying line and a carrier conveying line arranged in parallel, a tray supply unit and an empty tray recycling unit arranged at the front and rear ends of the tray conveying line, a tray positioning unit arranged between the tray supply unit and the empty tray recycling unit, a carrier supply unit and a carrier positioning unit arranged along the carrier conveying line, and a product transfer device for grabbing and placing multiple products from the tray on the tray conveying line into the carrier on the carrier conveying line. Although this patent document can realize the output of stacked tray circuit boards loaded with blanks one by one, the automatic recycling of empty trays, the automatic supply of carriers, and the rapid placement of blanks in the carriers for automatic detection, and finally the automatic output of carriers filled with qualified blank products, it cannot place a stack of trays on the conveying mechanism, nor can it load the stack of trays on the conveying mechanism into the carrier. Therefore, the defect is obvious, and a solution is urgently needed. SUMMARY

[0003] To solve the above technical problems, the purpose of the present application is to provide a stacked tray loading and unloading device, a tray loading method and a tray unloading method.

[0004] To achieve the above purpose, the present application adopts the following technical solutions: A stacked tray loading and unloading device, which comprises a machine table, a carrier placement position arranged on the machine table, a first conveying mechanism arranged on the machine table and located on one side of the carrier placement position, a tray supporting mechanism arranged on both sides of the first conveying mechanism, a lifting driving mechanism arranged on the machine table and used to drive the tray supporting mechanism to lift, a unlocking mechanism arranged on both sides of the first conveying mechanism and located above the tray supporting mechanism, a transfer robot arranged on the machine table and movably arranged between the first conveying mechanism and the carrier placement position, a width-adjustable conveying mechanism arranged on the machine table and used to connect with the output end of the first conveying mechanism, a lifting and rotating mechanism arranged in the middle of the width-adjustable conveying mechanism, a second conveying mechanism movably arranged on the output side of the width-adjustable conveying mechanism, a moving driving mechanism arranged on the machine table and used to drive the second conveying mechanism to move, a storage device arranged on one side of the carrier placement position and arranged side by side with the width-adjustable conveying mechanism, and a taking and placing robot arranged on the machine table and movably arranged between the storage device and the width-adjustable conveying mechanism, wherein the output end of the width-adjustable conveying mechanism is used to connect with the input end of the second conveying mechanism, and the tray supporting end of the tray supporting mechanism is arranged in a staggered manner with the unlocking end of the unlocking mechanism.

[0005] Furthermore, the material support mechanism includes two material support modules that are lifted and disposed on both sides of the first conveying mechanism. Each material support module includes a material support seat installed on the lifting end of the lifting drive mechanism, a first telescopic driver installed on the material support seat, and a material support plate installed on the telescopic end of the first telescopic driver. The material support plate is provided with a clearance space, and the unlocking end of the unlocking mechanism is movably disposed within the clearance space.

[0006] Furthermore, the material support plate is provided with at least two material support arms, the clearance space is located between two adjacent material support arms, and the free end of the material support arm is provided with a material support step.

[0007] Furthermore, the unlocking mechanism includes two unlocking modules located on both sides of the first conveying mechanism. Each unlocking module includes an unlocking seat mounted on the machine base, a second telescopic driver mounted on the unlocking seat, a lifting and rotating cylinder mounted on the telescopic end of the second telescopic driver, and an unlocking rod mounted on the lifting and rotating end of the lifting and rotating cylinder. The lifting and rotating end of the lifting and rotating cylinder can lift and rotate within the clearance space.

[0008] Furthermore, the width-adjustable conveying mechanism includes a fixed base mounted on the machine base, two conveyor belt modules that are parallel to and slidably connected to the fixed base, a first blocking mechanism mounted on the fixed base and located on the output side of the conveyor belt modules, and a spacing adjustment mechanism mounted on the fixed base for adjusting the spacing between the two conveyor belt modules. The lifting and rotating mechanism is located between the two conveyor belt modules, and the lifting and rotating end of the lifting and rotating mechanism can be higher or lower than the conveying surface of the conveyor belt modules.

[0009] Furthermore, the lifting and rotating mechanism includes a lifting drive module, a rotating module installed at the lifting end of the lifting drive module, and a lifting and rotating plate installed at the rotating end of the rotating module.

[0010] Furthermore, a second blocking mechanism is provided on the output side of the second conveying mechanism, and a transition guide roller is rotatably provided on the input side of the second conveying mechanism.

[0011] Furthermore, the storage device includes a storage compartment installed on the machine tool, multiple lifting support plates arranged parallel to and vertically within the storage compartment, and a lifting drive unit installed on the machine tool for driving the multiple lifting support plates to rise and fall. The bottom of the storage compartment has multiple through holes, and the multiple lifting support plates are respectively arranged in correspondence with the multiple through holes, and the lifting support plates can pass through the through holes.

[0012] This invention also provides a tray placement method based on the application of the aforementioned stacking tray handling equipment; the specific tray placement method includes the following steps: A. Place the carrier containing a stack of material trays on the carrier placement position. The transfer robot picks up the top of the carrier on the carrier placement position and transfers the carrier to the middle of the material support mechanism and the unlocking mechanism, so that the material support end of the material support mechanism is located below the bottom port of the carrier and initially supports the bottommost material tray inside the carrier. B. The unlocking end of the unlocking mechanism extends into the unlocking hole of the self-resetting rotating block, and the unlocking end of the unlocking mechanism drives the self-resetting rotating block to rotate outward, so that the self-resetting rotating block releases its support for the material tray. C. The lifting drive mechanism drives the material support mechanism to move down along with a stack of material trays until the stack of material trays is placed vertically on the first conveying mechanism. After the first conveying mechanism supports the material trays, the material support mechanism releases its support on the material trays. D. The input end of the width-adjustable conveyor is connected to the output end of the first conveyor. The first conveyor conveys a stack of material trays to the width-adjustable conveyor. After the width-adjustable conveyor conveys the stack of material trays to the top of the lifting and rotating mechanism, the lifting and rotating mechanism lifts the stack of material trays. E. The picking and placing robot picks up the cover plates from a stack of material trays and places them in the storage device, which stores the cover plates. F. The lifting and rotating mechanism drives a stack of trays to rotate 90°, so that the stack of trays is rotated from vertical to horizontal placement. During this process, the conveying surface of the width-adjustable conveying mechanism is adjusted to a width that matches the horizontally placed trays. G. The lifting and rotating mechanism lowers a stack of horizontally placed material trays onto the conveying surface of the width-adjustable conveyor, and the moving drive mechanism drives the second conveyor to move closer to the width-adjustable conveyor until the input end of the second conveyor connects with the output end of the width-adjustable conveyor. H. The width-adjustable conveyor mechanism transports a horizontally placed stack of material trays to the second conveyor mechanism; I. The moving drive mechanism drives the second conveyor mechanism, along with a stack of horizontally placed material trays, to move away from the width-adjustable conveyor mechanism until the second conveyor mechanism connects with the external structure. The second conveyor mechanism then transports the stack of horizontally placed material trays onto the external structure.

[0013] This invention also provides a method for receiving stacked trays, based on the application of the aforementioned stacking tray receiving and discharging equipment; the specific steps of the receiving method include: A. The second conveying mechanism is connected to the external structure, and the external structure conveys a stack of material trays placed horizontally to the second conveying mechanism; B. The moving drive mechanism drives the second conveyor to move to connect with the width-adjustable conveyor, and the second conveyor conveys a stack of material trays placed horizontally to the width-adjustable conveyor. C. The width-adjustable conveyor mechanism transports a horizontally placed stack of material trays to a position above the lifting and rotating mechanism, which then lifts the horizontally placed stack of material trays. D. The lifting and rotating mechanism drives a stack of material trays to rotate 90°, so that the material trays are rotated from a horizontal position to a vertical position. The picking and placing robot picks up the cover plate on the storage device and places the cover plate on the vertically placed stack of material trays. During this process, the width of the conveying surface of the width-adjustable conveying mechanism is adjusted to the width that connects with the first conveying mechanism. The lifting and rotating mechanism lowers the vertically placed stack of material trays onto the conveying surface of the width-adjustable conveying mechanism. E. The width-adjustable conveying mechanism conveys a stack of vertically placed material trays to the first conveying mechanism. The stack of vertically placed material trays carried by the first conveying mechanism is located above the material-supporting end of the material-supporting mechanism. During this process, an empty carrier is placed on the carrier placement position. The transfer robot picks up the empty carrier and transfers the carrier above the first conveying mechanism. The unlocking end of the unlocking mechanism is located below the self-resetting rotating support block of the carrier. F. The unlocking end of the unlocking mechanism is inserted into the unlocking hole of the self-resetting rotating block, and the unlocking mechanism drives the self-resetting rotating block to rotate outward. G. The lifting drive mechanism drives the material support mechanism to lift up a stack of vertically placed material trays, so that the material support mechanism loads the stack of vertically placed material trays into the carrier from bottom to top. H. When a stack of trays is completely loaded into the carrier, the unlocking end of the unlocking mechanism moves away from the unlocking hole of the self-resetting rotating block. The self-resetting rotating block can automatically reset and rotate inward until the self-resetting rotating block can support the bottom tray in the carrier, so as to limit the stack of trays in the carrier. I. The transfer robot can transfer the carrier containing a stack of material trays and place it on the carrier placement position.

[0014] The beneficial effects of this invention are as follows: In practical applications, when a tray needs to be placed, a carrier containing a stack of trays is placed on a carrier placement position. A transfer robot picks up the top of the carrier from the placement position and transfers the carrier to the middle of the material support mechanism and the unlocking mechanism. This allows the material support end of the material support mechanism to be positioned below the bottom port of the carrier and initially support the bottom tray inside the carrier. Then, the unlocking end of the unlocking mechanism extends into the unlocking hole of the self-resetting rotating block. The unlocking end of the unlocking mechanism drives the self-resetting rotating block to rotate outward, thereby... The self-resetting rotating support block releases its support on the material tray. Then, the lifting drive mechanism drives the material support mechanism, along with a stack of material trays, to move downwards until the stack of material trays is vertically placed on the first conveyor mechanism. After the first conveyor mechanism supports the material trays, the material support mechanism releases its support. The input end of the width-adjustable conveyor mechanism connects to the output end of the first conveyor mechanism. The first conveyor mechanism conveys the stack of material trays to the width-adjustable conveyor mechanism. After the width-adjustable conveyor mechanism conveys the stack of material trays to the preset position, the lifting and rotating mechanism moves the stack of material trays... The trays are lifted. Since the top layer of a stack of trays is a cover plate, the robotic arm picks up the cover plate from the stack of trays and places it in the storage device. The storage device stores the cover plate. Then, the lifting and rotating mechanism drives the stack of trays to rotate 90°, so that the stack of trays is rotated from vertical to horizontal placement. During this process, the conveying surface of the width-adjustable conveyor mechanism is adjusted to a width suitable for the horizontally placed trays. The lifting and rotating mechanism lowers the horizontally placed stack of trays onto the conveying surface of the width-adjustable conveyor mechanism. The moving drive mechanism drives the second conveyor mechanism to move closer to the width-adjustable conveyor mechanism until the input end of the second conveyor mechanism connects with the output end of the width-adjustable conveyor mechanism. Then, the width-adjustable conveyor mechanism conveys the horizontally placed stack of trays onto the second conveyor mechanism. Next, the moving drive mechanism drives the second conveyor mechanism, along with the horizontally placed stack of trays, to move away from the width-adjustable conveyor mechanism until the second conveyor mechanism connects with the external structure. The second conveyor mechanism then conveys the horizontally placed stack of trays onto the external structure. Of course, the input end of the first conveying mechanism can be connected to an external feeding mechanism, which will transport a stack of vertically placed trays to the first conveying mechanism; when there is no need to rotate and adjust the placement direction of the trays, the lifting and rotating mechanism does not need to drive the stack of trays to rotate.

[0015] When a tray needs to be collected, the second conveying mechanism connects to the external structure. The external structure conveys a horizontally placed stack of trays onto the second conveying mechanism. Then, the moving drive mechanism moves the second conveying mechanism to connect with the width-adjustable conveying mechanism. The second conveying mechanism conveys the horizontally placed stack of trays onto the width-adjustable conveying mechanism. When the width-adjustable conveying mechanism conveys the horizontally placed stack of trays to a position above the lifting and rotating mechanism, the lifting and rotating mechanism raises the horizontally placed stack of trays. Then, the lifting and rotating mechanism drives the stack of trays to rotate 90°, so that the trays rotate from a horizontal to a vertical position. At the same time, the pick-and-place robot picks up the cover plate on the storage device and places the cover plate on the vertically placed stack of trays. During this process, the width of the conveying surface of the width-adjustable conveying mechanism is adjusted to the width that connects with the first conveying mechanism. Then, the lifting and rotating mechanism lowers the vertically placed stack of trays onto the conveying surface of the width-adjustable conveying mechanism. The width-adjustable conveying mechanism then conveys the vertically placed stack of trays to the first conveying mechanism. Mechanismically, the vertically placed stack of material trays carried by the first conveying mechanism are positioned above the material-supporting end of the material-supporting mechanism. During this process, an empty carrier is placed in the carrier placement position, and the transfer robot picks up the empty carrier and transfers it above the first conveying mechanism. The unlocking end of the unlocking mechanism is located below the self-resetting rotating support block of the carrier. The unlocking end of the unlocking mechanism is inserted into the unlocking hole of the self-resetting rotating support block, and the unlocking mechanism drives the self-resetting rotating support block to rotate outward. Then, the lifting drive mechanism drives the material-supporting mechanism. The mechanism lifts a stack of vertically placed trays, allowing the material-supporting mechanism to load the stack of trays into the carrier from bottom to top. Once the stack of trays is fully loaded, the unlocking end of the unlocking mechanism moves away from the unlocking hole of the self-resetting rotating block. The self-resetting rotating block then automatically rotates inward until it can support the bottommost tray in the carrier, thus confining the stack of trays within the carrier. The transfer robot then moves the carrier containing the stack of trays and places it in the carrier placement position. Alternatively, the first conveying mechanism can directly output the stack of vertically placed trays; when there is no need to adjust the tray placement direction, the lifting and rotating mechanism does not need to drive the stack of trays to rotate. This invention not only allows for the lowering and outward conveying of a stack of trays from the carrier or the loading of an externally input stack of trays into the carrier, but also enables docking with different equipment to achieve automated tray conveying in the same conveying direction. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0018] Figure 3 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the transfer robot, material support mechanism, unlocking mechanism, lifting drive mechanism, and first conveying mechanism of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the lifting drive mechanism, unlocking mechanism, and material support mechanism of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the storage device of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the width-adjustable conveying mechanism, lifting and rotating mechanism, first blocking mechanism, second conveying mechanism and second blocking mechanism of the present invention; wherein the material tray is placed horizontally.

[0023] Figure 8 This is a three-dimensional structural diagram of the width-adjustable conveying mechanism, lifting and rotating mechanism, first blocking mechanism, second conveying mechanism and second blocking mechanism of the present invention; wherein the material tray is placed vertically.

[0024] Figure 9 This is a three-dimensional structural diagram of the width-adjustable conveying mechanism and the first blocking mechanism of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the lifting and rotating mechanism of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the vehicle in this embodiment.

[0027] Figure 12 This is a three-dimensional structural diagram of the tray in this embodiment.

[0028] Explanation of reference numerals in the attached figures: 1. Machine base; 2. Carrier placement position; 3. First conveying mechanism; 4. Material support mechanism; 5. Lifting drive mechanism; 6. Unlocking mechanism; 7. Transfer robot; 8. Width-adjustable conveying mechanism; 9. Lifting and rotating mechanism; 10. Second conveying mechanism; 11. Moving drive mechanism; 12. Storage device; 13. Pick-and-place robot; 14. Material support module; 15. Material support seat; 16. First telescopic actuator; 17. Material support plate; 18. Clearance space; 19. Material support arm; 20. Material support step; 21. Unlocking module; 22. Unlocking seat; 23. Second telescopic actuator; 24. Lifting... 25. Rotary cylinder; 26. Unlocking rod; 27. Fixed seat; 28. Conveyor belt module; 29. ​​First blocking mechanism; 30. Spacing adjustment mechanism; 31. Lifting drive module; 32. Rotary module; 33. Lifting rotating plate; 34. Second blocking mechanism; 35. Transition guide roller; 36. Storage bin; 37. Lifting receiving plate; 38. Lifting drive unit; 39. Through hole; 40. Rotary driver; 41. Rotary shaft; 42. Mounting plate; 43. Limiting component; 44. Limiting plate; 45. Column; 46. Carrier; 47. Self-resetting rotating support block; 48. Material tray; 49. Support groove. Detailed Implementation To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0029] like Figures 1 to 12As shown, the present invention provides a stacking tray receiving and discharging device, which includes a machine base 1, a carrier placement position 2 disposed on the machine base 1, a first conveying mechanism 3 disposed on the machine base 1 and located on one side of the carrier placement position 2, a material support mechanism 4 vertically disposed on both sides of the first conveying mechanism 3, a lifting drive mechanism 5 mounted on the machine base 1 for driving the material support mechanism 4 to rise and fall, an unlocking mechanism 6 disposed on both sides of the first conveying mechanism 3 and located above the material support mechanism 4, a transfer manipulator 7 mounted on the machine base 1 and movably disposed between the first conveying mechanism 3 and the carrier placement position 2, and a width-adjustable conveyor mounted on the machine base 1 for connecting with the output end of the first conveying mechanism 3. The system comprises: 8. A lifting and rotating mechanism 9 located in the middle of the width-adjustable conveying mechanism 8; 10. A second conveying mechanism 10 movably located on the output side of the width-adjustable conveying mechanism 8; 11. A moving drive mechanism 11 mounted on the machine base 1 and used to drive the second conveying mechanism 10; 12. A storage device 12 located on one side of the carrier placement position 2 and arranged parallel to the width-adjustable conveying mechanism 8; and 13. A picking and placing robot 13 mounted on the machine base 1 and movably arranged between the storage device 12 and the width-adjustable conveying mechanism 8. The output end of the width-adjustable conveying mechanism 8 is used to connect with the input end of the second conveying mechanism 10. The material-supporting end of the material-supporting mechanism 4 is offset from the unlocking end of the unlocking mechanism 6. The carrier 45 is a Cassette carrier. A self-resetting rotating support block 46 is rotatably connected to the bottom port side of the carrier 45. The self-resetting rotating support block 46 can automatically rotate inward to reset. The self-resetting rotating support block 46 is provided with an unlocking hole and can support the material tray 47 inside the carrier 45.

[0030] In practical applications, when it is necessary to place the material tray 47, the carrier 45 containing a stack of material trays 47 is placed on the carrier placement position 2. The transfer robot 7 picks up the top of the carrier 45 on the carrier placement position 2 and transfers the carrier 45 to the middle of the material support mechanism 4 and the unlocking mechanism 6, so that the material support end of the material support mechanism 4 is located below the bottom port of the carrier 45 and initially supports the bottommost material tray 47 inside the carrier 45. Then, the unlocking end of the unlocking mechanism 6 extends into the unlocking hole of the self-resetting rotating support block 46, and the unlocking end of the unlocking mechanism 6 drives the self-resetting rotating support block 46 to rotate outward, so that the self-resetting rotation... The support block 46 releases its support on the tray 47, and then the lifting drive mechanism 5 drives the material support mechanism 4 to move the stack of trays 47 downwards until the stack of trays 47 is vertically placed on the first conveying mechanism 3. After the first conveying mechanism 3 supports the trays 47, the material support mechanism 4 releases its support on the trays 47. The input end of the width-adjustable conveying mechanism 8 is connected to the output end of the first conveying mechanism 3. The first conveying mechanism 3 conveys the stack of trays 47 to the width-adjustable conveying mechanism 8. After the width-adjustable conveying mechanism 8 conveys the stack of trays 47 to the preset position, the lifting and rotating mechanism 9 lifts the stack of trays 47... 7. Lifting: Since the top layer of the stack of trays 47 has a cover plate, the pick-and-place robot 13 picks up the cover plate from the stack of trays 47 and places it in the storage device 12. The storage device 12 stores the cover plate. Then, the lifting and rotating mechanism 9 drives the stack of trays 47 to rotate 90°, so that the stack of trays 47 rotates from vertical to horizontal placement. During this process, the conveying surface of the width-adjustable conveying mechanism 8 is adjusted to a width suitable for the horizontally placed trays 47. The lifting and rotating mechanism 9 lowers the horizontally placed stack of trays 47 onto the conveying surface of the width-adjustable conveying mechanism 8, and moves... The drive mechanism 11 drives the second conveying mechanism 10 to move closer to the width-adjustable conveying mechanism 8 until the input end of the second conveying mechanism 10 connects with the output end of the width-adjustable conveying mechanism 8. Then, the width-adjustable conveying mechanism 8 conveys a horizontally placed stack of trays 47 onto the second conveying mechanism 10. Next, the drive mechanism 11 drives the second conveying mechanism 10, along with the horizontally placed stack of trays 47, to move away from the width-adjustable conveying mechanism 8 until the second conveying mechanism 10 connects with the external structure. The second conveying mechanism 10 then conveys the horizontally placed stack of trays 47 onto the external structure. Of course, the input end of the first conveying mechanism 3 can connect with an external feeding mechanism, which conveys a vertically placed stack of trays 47 onto the first conveying mechanism 3. When there is no need to rotate the placement direction of the trays 47, the lifting and rotating mechanism 9 does not need to drive the stack of trays 47 to rotate.

[0031] When the receiving tray 47 is needed, the second conveying mechanism 10 connects with the external structure, which then conveys a horizontally placed stack of trays 47 onto the second conveying mechanism 10. Next, the moving drive mechanism 11 drives the second conveying mechanism 10 to connect with the width-adjustable conveying mechanism 8. The second conveying mechanism 10 then conveys the horizontally placed stack of trays 47 onto the width-adjustable conveying mechanism 8. When the width-adjustable conveying mechanism 8 conveys the horizontally placed stack of trays 47 to a position above the lifting and rotating mechanism 9, the lifting and rotating mechanism 9 lifts the horizontally placed stack of trays 47, and then the lifting and rotating mechanism... Mechanism 9 drives a stack of trays 47 to rotate 90°, changing the trays 47 from a horizontal to a vertical orientation. Meanwhile, the pick-and-place robot 13 picks up the cover plate from the storage device 12 and places it on the vertically positioned stack of trays 47. During this process, the width of the conveying surface of the adjustable-width conveying mechanism 8 is adjusted to the width that connects with the first conveying mechanism 3. Then, the lifting and rotating mechanism 9 lowers the vertically positioned stack of trays 47 onto the conveying surface of the adjustable-width conveying mechanism 8. The adjustable-width conveying mechanism 8 then conveys the vertically positioned stack of trays 47 onto the first conveying mechanism 3. The vertically placed stack of material trays 47 carried by the conveying mechanism 3 is located above the material-supporting end of the material-supporting mechanism 4. During this process, an empty carrier 45 is placed on the carrier placement position 2. The transfer robot 7 picks up the empty carrier 45 and transfers it above the first conveying mechanism 3. The unlocking end of the unlocking mechanism 6 is located below the self-resetting rotating support block 46 of the carrier 45. The unlocking end of the unlocking mechanism 6 is inserted into the unlocking hole of the self-resetting rotating support block 46. The unlocking mechanism 6 drives the self-resetting rotating support block 46 to rotate outward. Then, the lifting drive mechanism 5 drives the material-supporting mechanism 4, along with the vertical... A stack of trays 47 is raised, allowing the material-supporting mechanism 4 to load the vertically placed stack of trays 47 into the carrier 45 from bottom to top. Once the stack of trays 47 is fully loaded into the carrier 45, the unlocking end of the unlocking mechanism 6 moves away from the unlocking hole of the self-resetting rotating block 46. The self-resetting rotating block 46 automatically resets and rotates inward until it can support the bottommost tray 47 within the carrier 45, thus limiting the stack of trays 47 within the carrier 45. Then, the transfer robot 7 can transfer the carrier 45 containing the stack of trays 47 and place it on the carrier placement position 2. Of course, the first conveying mechanism 3 can also directly output the vertically placed stack of trays 47; when there is no need to rotate and adjust the placement direction of the trays 47, the lifting and rotating mechanism 9 does not need to drive the stack of trays 47 to rotate. This invention can not only lower a stack of trays 47 from the carrier 45 and transport them outwards, or load a stack of trays 47 from the outside into the carrier 45, but also interface with different devices to achieve automated conveying of trays 47 in the same conveying direction. It should be noted that "same conveying direction" means moving in only one direction on the horizontal plane.

[0032] In this embodiment, the material support mechanism 4 includes two material support modules 14 that are vertically and vertically arranged on both sides of the first conveying mechanism 3. Each material support module 14 includes a material support seat 15 mounted on the lifting end of the lifting drive mechanism 5, a first telescopic driver 16 mounted on the material support seat 15, and a material support plate 17 mounted on the telescopic end of the first telescopic driver 16. The material support plate 17 is provided with a clearance space 18, and the unlocking end of the unlocking mechanism 6 is movably disposed within the clearance space 18. Specifically, the material support plate 17 is provided with at least two material support arms 19, the clearance space 18 is located between two adjacent material support arms 19, and the free end of each material support arm 19 is provided with a material support step 20. The bottom side of the material tray 47 is recessed with a support groove 48, into which the material support step 20 can extend. Preferably, the first telescopic driver 16 can be a horizontally arranged cylinder.

[0033] In practical applications, the two material support modules 14 cooperate to support the material tray 47. When the material support step 20 on the material support arm 19 of the material support plate 17 is located below the bottom port of the carrier 45 and the material support step 20 extends into the support groove 48 of the material tray 47, the unlocking mechanism 6 rotates the self-resetting rotating support block 46 of the carrier 45 outward, so that the self-resetting rotating support block 46 does not support the material tray 47. Then, the lifting drive mechanism 5 drives the two material support modules 14 and a stack of material trays 47 to descend until the stack of material trays 47 is placed on the conveying surface of the first conveying mechanism 3. At this time, the first telescopic drive 16 drives the material support plate 17 and the material support arm 19 to retract outward, so that the material support step 20 on the material support arm 19 moves out of the support groove of the material tray 47, so that the material support arm 19 is separated from the material tray 47, and the stack of material trays 47 is stably placed on the first conveying mechanism 3. In addition, when it is necessary to load a stack of trays 47 on the first conveying mechanism 3 into the carrier 45, it is only necessary to reverse the operation, which will not be described in detail here.

[0034] In this embodiment, the unlocking mechanism 6 includes two unlocking modules 21 located on both sides of the first conveying mechanism 3. Each unlocking module 21 includes an unlocking seat 22 mounted on the machine base 1, a second telescopic actuator 23 mounted on the unlocking seat 22, a lifting and rotating cylinder 24 mounted on the telescopic end of the second telescopic actuator 23, and an unlocking rod 25 mounted on the lifting and rotating end of the lifting and rotating cylinder 24. The lifting and rotating end of the lifting and rotating cylinder 24 can operate in the clearance space 18, moving up and down and rotating. Preferably, the second telescopic actuator 23 can be a horizontally arranged cylinder.

[0035] In practical applications, when the transfer robot 7 picks up the carrier 45 and transfers it above the first conveying mechanism 3, the unlocking rod 25 of the unlocking module 21 is located below the self-resetting rotating support block 46 of the carrier 45. Then, the second telescopic driver 23 drives the lifting and rotating cylinder 24 to move the unlocking rod 25 inward, so that the unlocking rod 25 is aligned with the unlocking hole of the self-resetting rotating support block 46. Then, the lifting and rotating cylinder 24 drives the unlocking rod 25 to rise and insert it into the unlocking hole of the self-resetting rotating support block 46. Then, the lifting and rotating end of the lifting and rotating cylinder 24 rotates and drives the unlocking rod 25 to swing. The swinging unlocking rod 25 drives the self-resetting rotating support block 46 to rotate outward, so that the material support mechanism 4 can lower a stack of material trays 47 in the carrier 45 or load a stack of material trays 47 into the carrier 45.

[0036] In this embodiment, the width-adjustable conveying mechanism 8 includes a fixed base 26 mounted on the machine base 1, two conveyor belt modules 27 parallel to and slidably connected to the fixed base 26, a first blocking mechanism 28 mounted on the fixed base 26 and located on the output side of the conveyor belt modules 27, and a spacing adjustment mechanism 29 mounted on the fixed base 26 for adjusting the spacing between the two conveyor belt modules 27. The lifting and rotating mechanism 9 is located between the two conveyor belt modules 27, and the lifting and rotating end of the lifting and rotating mechanism 9 can be higher or lower than the conveying surface of the conveyor belt modules 27.

[0037] In practical applications, after the vertically placed tray 47 is conveyed to the two conveyor belt modules 27, the two conveyor belt modules 27 convey the vertically placed tray 47 until the first blocking mechanism 28 blocks one end of the tray 47. Then, the lifting and rotating mechanism 9 lifts the tray 47, so that the tray 47 is separated from the conveying surface of the conveyor belt module 27, and the pick-and-place robot 13 removes the cover plate from a stack of trays 47. When it is necessary to adjust the swing direction (placement direction) of the tray 47, the lifting and rotating mechanism 9 drives the tray 47 to rotate 90°, so that the tray 47 changes from a vertically placed state to a horizontally placed state. In this process, the spacing adjustment mechanism 29 adjusts the spacing between the two conveyor belt modules 27 so that the spacing between the two conveyor belt modules 27 is increased to meet the requirements of supporting the horizontally placed material tray 47. Then, the lifting and rotating mechanism 9 drives the horizontally placed stack of material trays 47 to descend so as to place the horizontally placed stack of material trays 47 on the conveying surface of the two conveyor belt modules 27. Then, the second conveying mechanism 10 connects with the width adjustable conveying mechanism 8, and the first blocking mechanism 28 releases the obstruction on the material tray 47. The two conveyor belt modules 27 convey the horizontally placed stack of material trays 47 to the second conveying mechanism 10.

[0038] In this embodiment, the lifting and rotating mechanism 9 includes a lifting drive module 30 mounted on the fixed base 26, a rotating module 31 mounted on the lifting end of the lifting drive module 30, and a lifting and rotating plate 32 mounted on the rotating end of the rotating module 31.

[0039] In practical applications, the lifting drive module 30 drives the rotation module 31 to lift and lower the rotating plate 32, and the rotation module 31 drives the rotating plate 32 to rotate, so that the rotating plate 32 can drive a stack of trays 47 to lift and lower, and can also drive a stack of trays 47 to rotate.

[0040] In this embodiment, a second blocking mechanism 33 is provided on the output side of the second conveying mechanism 10, and a transition guide roller 34 is rotatably provided on the input side of the second conveying mechanism 10. In practical applications, during the process of the width-adjustable conveying mechanism 8 conveying a stack of trays 47 to the second conveying mechanism 10, the transition guide roller 34 plays a transitional conveying role for the trays 47, enabling the stack of trays 47 to move stably onto the conveying surface of the second conveying mechanism 10. The second blocking mechanism 33 can block the stack of trays 47 on the second conveying mechanism 10. When the second conveying mechanism 10 needs to output the stack of trays 47 outward, the second blocking mechanism 33 releases its obstruction of the trays 47, and the second conveying mechanism 10 outputs the trays 47 outward.

[0041] In this embodiment, the storage device 12 includes a storage compartment 35 installed on the machine base 1, multiple lifting support plates 36 arranged parallel to and vertically within the storage compartment 35, and a lifting drive unit 37 installed on the machine base 1 for driving the multiple lifting support plates 36 to rise and fall. The bottom of the storage compartment 35 is provided with multiple through holes 38, and the multiple lifting support plates 36 are respectively arranged in correspondence with the multiple through holes 38. The lifting support plates 36 can pass through the through holes 38.

[0042] In practical applications, storage compartment 35 is used to store cover plates. When a cover plate is added to storage compartment 35, lifting drive unit 37 drives multiple lifting support plates to descend by the height of one cover plate, allowing the cover plates to be stacked and stored in storage compartment 35. When a cover plate is removed from storage compartment 35, lifting drive unit 37 drives multiple lifting support plates to rise by the height of one cover plate, allowing the stacked cover plates in storage compartment 35 to gradually rise for feeding. The through hole 38 provides space for the lifting support plates to move.

[0043] In this embodiment, the rotating module 31 includes a rotating driver 39 mounted on the lifting end of the lifting drive module 30, a rotating shaft 40 mounted on the rotating end of the rotating driver 39, a mounting plate 41 mounted on the main body of the rotating driver 39, two limiting members 42 mounted on the mounting plate 41 and located on both sides of the rotating shaft 40, and two limiting plates 43 disposed on the periphery of the rotating shaft 40. The included angle between the two limiting plates 43 is 90°. One limiting plate 43 is used to abut against one limiting member 42, and the other limiting plate 43 is used to abut against the other limiting member 42. The lifting rotating plate 32 is mounted on the top end of the rotating shaft 40. Preferably, the rotating driver 39 can be a rotating cylinder or a motor.

[0044] In practical applications, the rotary driver 39 drives the rotary shaft 40 to rotate, and the rotating rotary shaft 40 drives the lifting rotary plate 32 to rotate. During the reciprocating rotation of the rotary shaft 40 driven by the rotary driver 39, the two limiting members 42 and the two limiting plates 43 abut against each other to ensure that the rotary shaft 40 and the lifting rotary plate 32 reciprocate between 0° and 90°, thereby ensuring that the vertically placed tray 47 can be accurately rotated to the horizontally placed tray 47.

[0045] In this embodiment, the lifting drive mechanism 5 has two columns 44 at its lifting end, and the material support seats 15 of the two material support modules 14 are respectively installed on the top of the two columns 44. This structural design allows the two material support modules 14 to be lifted and lowered on both sides of the first conveying mechanism 3, and makes the structure of the lifting drive mechanism 5 and the first conveying mechanism 3 compact.

[0046] This invention also provides a tray placement method based on the application of the aforementioned stacking tray handling equipment; the specific tray placement method includes the following steps: A. Place the carrier 45 containing a stack of material trays 47 on the carrier placement position 2. The transfer robot 7 picks up the top of the carrier 45 on the carrier placement position 2 and transfers the carrier 45 to the middle of the material support mechanism 4 and the unlocking mechanism 6, so that the material support end of the material support mechanism 4 is located below the bottom port of the carrier 45 and initially supports the bottommost material tray 47 inside the carrier 45. B. The unlocking end of the unlocking mechanism 6 extends into the unlocking hole of the self-resetting rotating support block 46. The unlocking end of the unlocking mechanism 6 drives the self-resetting rotating support block 46 to rotate outward, so that the self-resetting rotating support block 46 releases its support on the material tray 47. C. The lifting drive mechanism 5 drives the material support mechanism 4 to move down along with a stack of material trays 47 until the stack of material trays 47 is placed vertically on the first conveying mechanism 3. After the first conveying mechanism 3 supports the material trays 47, the material support mechanism 4 releases its support on the material trays 47. D. The input end of the width-adjustable conveying mechanism 8 is connected to the output end of the first conveying mechanism 3. The first conveying mechanism 3 conveys a stack of material trays 47 to the width-adjustable conveying mechanism 8. After the width-adjustable conveying mechanism 8 conveys the stack of material trays 47 to the top of the lifting and rotating mechanism 9, the lifting and rotating mechanism 9 lifts the stack of material trays 47. E. The pick-and-place robot 13 picks up the cover plates on a stack of material trays 47 and places them in the storage device 12, which stores the cover plates. F. The lifting and rotating mechanism 9 drives a stack of trays 47 to rotate 90°, so that the stack of trays 47 rotates from vertical placement to horizontal placement. During this process, the conveying surface of the width-adjustable conveying mechanism 8 is adjusted to a width that matches the horizontally placed trays 47. G. The lifting and rotating mechanism 9 lowers a stack of material trays 47 placed horizontally onto the conveying surface of the width-adjustable conveying mechanism 8, and the moving drive mechanism 11 drives the second conveying mechanism 10 to move closer to the width-adjustable conveying mechanism 8 until the input end of the second conveying mechanism 10 connects with the output end of the width-adjustable conveying mechanism 8. H. The width-adjustable conveyor 8 conveys a horizontally placed stack of material trays 47 to the second conveyor 10; 1. The moving drive mechanism 11 drives the second conveying mechanism 10, along with a stack of horizontally placed material trays 47, to move away from the width-adjustable conveying mechanism 8 until the second conveying mechanism 10 connects with the external structure. The second conveying mechanism 10 then conveys the stack of horizontally placed material trays 47 onto the external structure.

[0047] This invention also provides a method for receiving stacked trays, based on the application of the aforementioned stacking tray receiving and discharging equipment; the specific steps of the receiving method include: A. The second conveying mechanism 10 is connected to the external structure, and the external structure conveys a stack of material trays 47 placed horizontally to the second conveying mechanism 10. B. The moving drive mechanism 11 drives the second conveying mechanism 10 to move to connect with the width-adjustable conveying mechanism 8. The second conveying mechanism 10 conveys a stack of material trays 47 placed horizontally to the width-adjustable conveying mechanism 8. C. The width-adjustable conveying mechanism 8 conveys a horizontally placed stack of material trays 47 to a position above the lifting and rotating mechanism 9, and the lifting and rotating mechanism 9 lifts the horizontally placed stack of material trays 47. D. The lifting and rotating mechanism 9 drives a stack of trays 47 to rotate 90°, so that the trays 47 are rotated from a horizontal position to a vertical position. The picking and placing robot 13 picks up the cover plate on the storage device 12 and places the cover plate on the vertically placed stack of trays 47. During this process, the width of the conveying surface of the width-adjustable conveying mechanism 8 is adjusted to the width that connects with the first conveying mechanism 3. The lifting and rotating mechanism 9 lowers the vertically placed stack of trays 47 onto the conveying surface of the width-adjustable conveying mechanism 8. E. The width-adjustable conveying mechanism 8 conveys a stack of vertically placed material trays 47 to the first conveying mechanism 3. The stack of vertically placed material trays 47 carried by the first conveying mechanism 3 is located above the material-supporting end of the material-supporting mechanism 4. During this process, the empty carrier 45 is placed on the carrier placement position 2. The transfer robot 7 picks up the empty carrier 45 and transfers the carrier 45 above the first conveying mechanism 3. The unlocking end of the unlocking mechanism 6 is located below the self-resetting rotating support block 46 of the carrier 45. F. The unlocking end of the unlocking mechanism 6 is inserted into the unlocking hole of the self-resetting rotating block 46, and the unlocking mechanism 6 drives the self-resetting rotating block 46 to rotate outward. G. The lifting drive mechanism 5 drives the material support mechanism 4 to lift the stack of material trays 47 placed vertically, so that the material support mechanism 4 loads the stack of material trays 47 placed vertically from bottom to top into the carrier 45. H. When a stack of trays 47 is completely loaded into the carrier 45, the unlocking end of the unlocking mechanism 6 moves away from the unlocking hole of the self-resetting rotating block 46. The self-resetting rotating block 46 can automatically reset and rotate inward until the self-resetting rotating block 46 can support the bottom tray 47 in the carrier 45, so as to limit the stack of trays 47 in the carrier 45. 1. The transfer robot 7 can transfer the carrier 45 containing a stack of material trays 47 and place it on the carrier placement position 2.

[0048] All technical features in this embodiment can be freely combined according to actual needs.

[0049] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

Claims

1. A stacking tray receiving and discharging device, characterized in that: Includes a machine base (1), a carrier placement position (2) set on the machine base (1), a first conveying mechanism (3) set on the machine base (1) and located on one side of the carrier placement position (2), a material support mechanism (4) lifted and lowered on both sides of the first conveying mechanism (3), a lifting drive mechanism (5) installed on the machine base (1) and used to drive the lifting of the material support mechanism (4), an unlocking mechanism (6) set on both sides of the first conveying mechanism (3) and located above the material support mechanism (4), a transfer manipulator (7) installed on the machine base (1) and movably set between the first conveying mechanism (3) and the carrier placement position (2), a width-adjustable conveying mechanism (8) installed on the machine base (1) and used to connect with the output end of the first conveying mechanism (3), and a width-adjustable conveying mechanism (8) set on the machine base (1). The adjustable conveyor mechanism (8) includes a lifting and rotating mechanism (9) in the middle, a second conveyor mechanism (10) movably disposed on the output side of the adjustable conveyor mechanism (8), a moving drive mechanism (11) mounted on the machine base (1) and used to drive the second conveyor mechanism (10) to move, a storage device (12) disposed on one side of the carrier placement position (2) and arranged side by side with the adjustable conveyor mechanism (8), and a picking and placing robot (13) mounted on the machine base (1) and movably disposed between the storage device (12) and the adjustable conveyor mechanism (8). The output end of the adjustable conveyor mechanism (8) is used to connect with the input end of the second conveyor mechanism (10), and the material-bearing end of the material-bearing mechanism (4) is misaligned with the unlocking end of the unlocking mechanism (6).

2. The stacking tray receiving and discharging device according to claim 1, characterized in that: The material support mechanism (4) includes two material support modules (14) that are lifted and disposed on both sides of the first conveying mechanism (3). The material support module (14) includes a material support seat (15) installed on the lifting end of the lifting drive mechanism (5), a first telescopic driver (16) installed on the material support seat (15), and a material support plate (17) installed on the telescopic end of the first telescopic driver (16). The material support plate (17) is provided with a clearance space (18), and the unlocking end of the unlocking mechanism (6) is movably disposed in the clearance space (18).

3. The stacking tray receiving and discharging device according to claim 2, characterized in that: The material support plate (17) is provided with at least two material support arms (19), and the clearance space (18) is located between two adjacent material support arms (19). The free end of the material support arm (19) is provided with a material support step (20).

4. The stacking tray receiving and discharging device according to claim 2, characterized in that: The unlocking mechanism (6) includes two unlocking modules (21) located on both sides of the first conveying mechanism (3). The unlocking module (21) includes an unlocking seat (22) installed on the machine base (1), a second telescopic driver (23) installed on the unlocking seat (22), a lifting and rotating cylinder (24) installed on the telescopic end of the second telescopic driver (23), and an unlocking rod (25) installed on the lifting and rotating end of the lifting and rotating cylinder (24). The lifting and rotating end of the lifting and rotating cylinder (24) can lift and rotate within the clearance space (18).

5. The stacking tray receiving and discharging device according to claim 1, characterized in that: The width-adjustable conveying mechanism (8) includes a fixed base (26) mounted on the machine base (1), two conveyor belt modules (27) parallel to and slidably connected to the fixed base (26), a first blocking mechanism (28) mounted on the fixed base (26) and located on the output side of the conveyor belt module (27), and a spacing adjustment mechanism (29) mounted on the fixed base (26) for adjusting the spacing between the two conveyor belt modules (27). The lifting and rotating mechanism (9) is located between the two conveyor belt modules (27), and the lifting and rotating end of the lifting and rotating mechanism (9) can be higher or lower than the conveying surface of the conveyor belt module (27).

6. The stacking tray receiving and discharging device according to claim 1, characterized in that: The lifting and rotating mechanism (9) includes a lifting drive module (30), a rotating module (31) installed at the lifting end of the lifting drive module (30), and a lifting rotating plate (32) installed at the rotating end of the rotating module (31).

7. The stacking tray receiving and discharging device according to claim 1, characterized in that: The output side of the second conveying mechanism (10) is provided with a second blocking mechanism (33), and the input side of the second conveying mechanism (10) is rotatably provided with a transition guide roller (34).

8. The stacking tray receiving and discharging device according to claim 1, characterized in that: The storage device (12) includes a storage compartment (35) installed on the machine base (1), multiple lifting support plates (36) arranged parallel to and vertically within the storage compartment (35), and a lifting drive unit (37) installed on the machine base (1) for driving the multiple lifting support plates (36) to rise and fall. The bottom of the storage compartment (35) is provided with multiple through holes (38), and the multiple lifting support plates (36) are respectively arranged in correspondence with the multiple through holes (38). The lifting support plates (36) can pass through the through holes (38).

9. A method for placing a plate, characterized in that: Based on the application of the stacking tray handling device according to any one of claims 1 to 8; the specific tray handling method includes the following steps: A. Place the carrier (45) containing a stack of trays (47) on the carrier placement position (2), and transfer the robot (7) to pick up the top of the carrier (45) on the carrier placement position (2) and transfer the carrier (45) to the middle of the material support mechanism (4) and the unlocking mechanism (6), so that the material support end of the material support mechanism (4) is located below the bottom port of the carrier (45) and initially supports the bottom tray (47) inside the carrier (45); B. The unlocking end of the unlocking mechanism (6) extends into the unlocking hole of the self-resetting rotating block (46), and the unlocking end of the unlocking mechanism (6) drives the self-resetting rotating block (46) to rotate outward, so that the self-resetting rotating block (46) releases its support on the tray (47). C. The lifting drive mechanism (5) drives the material support mechanism (4) to move down along with a stack of material trays (47) until the stack of material trays (47) is placed vertically on the first conveying mechanism (3). After the first conveying mechanism (3) supports the material trays (47), the material support mechanism (4) releases its support on the material trays (47). D. The input end of the width-adjustable conveying mechanism (8) is connected to the output end of the first conveying mechanism (3). The first conveying mechanism (3) conveys a stack of trays (47) to the width-adjustable conveying mechanism (8). After the width-adjustable conveying mechanism (8) conveys the stack of trays (47) to the top of the lifting and rotating mechanism (9), the lifting and rotating mechanism (9) lifts the stack of trays (47). E. The pick-and-place robot (13) picks up the cover plate on a stack of material trays (47) and places it in the storage device (12), which stores the cover plate. F. The lifting and rotating mechanism (9) drives a stack of trays (47) to rotate 90°, so that the stack of trays (47) rotates from vertical to horizontal placement. During this process, the conveying surface of the width-adjustable conveying mechanism (8) is adjusted to the width that matches the horizontally placed trays (47). G. The lifting and rotating mechanism (9) lowers a stack of horizontally placed trays (47) onto the conveying surface of the width-adjustable conveying mechanism (8), and the moving drive mechanism (11) drives the second conveying mechanism (10) to move close to the width-adjustable conveying mechanism (8) until the input end of the second conveying mechanism (10) connects with the output end of the width-adjustable conveying mechanism (8). H. The width-adjustable conveying mechanism (8) conveys a stack of material trays (47) placed horizontally to the second conveying mechanism (10); I. The moving drive mechanism (11) drives the second conveying mechanism (10) to move a stack of horizontally placed trays (47) away from the width-adjustable conveying mechanism (8) until the second conveying mechanism (10) connects with the external structure. The second conveying mechanism (10) then conveys the stack of horizontally placed trays (47) onto the external structure.

10. A closing method, characterized in that: Based on the application of the stacking tray handling device according to any one of claims 1 to 8; the specific tray handling method includes the following steps: A. The second conveying mechanism (10) is connected to the external structure, and the external structure conveys a stack of material trays (47) placed horizontally to the second conveying mechanism (10); B. The moving drive mechanism (11) drives the second conveying mechanism (10) to move to connect with the width-adjustable conveying mechanism (8), and the second conveying mechanism (10) conveys a stack of material trays (47) placed horizontally to the width-adjustable conveying mechanism (8); C. The width-adjustable conveying mechanism (8) conveys a stack of horizontally placed material trays (47) to a position above the lifting and rotating mechanism (9), and the lifting and rotating mechanism (9) lifts the stack of horizontally placed material trays (47); D. The lifting and rotating mechanism (9) drives a stack of trays (47) to rotate 90°, so that the trays (47) are rotated from horizontal to vertical. The picking and placing robot (13) picks up the cover plate on the storage device (12) and places the cover plate on the vertically placed stack of trays (47). During this process, the width of the conveying surface of the width-adjustable conveying mechanism (8) is adjusted to the width that connects with the first conveying mechanism (3). The lifting and rotating mechanism (9) lowers the vertically placed stack of trays (47) onto the conveying surface of the width-adjustable conveying mechanism (8). E. The width-adjustable conveying mechanism (8) conveys a stack of vertically placed trays (47) to the first conveying mechanism (3). The stack of vertically placed trays (47) carried by the first conveying mechanism (3) is located above the material-supporting end of the material-supporting mechanism (4). During this process, the empty carrier (45) is placed on the carrier placement position (2). The transfer robot (7) picks up the empty carrier (45) and transfers the carrier (45) above the first conveying mechanism (3). The unlocking end of the unlocking mechanism (6) is located below the self-resetting rotating support block (46) of the carrier (45). F. The unlocking end of the unlocking mechanism (6) is inserted into the unlocking hole of the self-resetting rotating block (46), and the unlocking mechanism (6) drives the self-resetting rotating block (46) to rotate outward. G. The lifting drive mechanism (5) drives the material support mechanism (4) to lift the stack of material trays (47) placed vertically, so that the material support mechanism (4) loads the stack of material trays (47) placed vertically from bottom to top into the carrier (45). H. When a stack of trays (47) is completely loaded into the carrier (45), the unlocking end of the unlocking mechanism (6) moves away from the unlocking hole of the self-resetting rotating block (46), and the self-resetting rotating block (46) can automatically reset and rotate inward until the self-resetting rotating block (46) can support the bottom tray (47) in the carrier (45) to limit the stack of trays (47) in the carrier (45); I. The transfer robot (7) can transfer the carrier (45) containing a stack of trays (47) and place it on the carrier placement position (2).

Images